[xml] extension date function bug?

[spinmar interfree it]

Hi all,

I have a problem with exslt function in libxslt

I have an xml file with a tag LMT (seconds from the epoch) whose value is 1102028400.

I have a perl program which simply call ctime on this value: the result is

Fri Dec 3 0:00:00 2004

If I try to use exslt (I'm using libxslt 1.0.33) whithin a xsl:

.....
<xsl:value-of select="date:add('1970-01-01T00:00:00Z', date:duration(LMT))" />
........

I obtain:

*2004-12-02T23:00:00Z*

This is different. I don't know if the problem is perl or exslt.

The man page of ctime says:

"When interpreted as an absolute time value, it represents the  number  of  seconds  elapsed  since
      00:00:00 on January 1, 1970, Coordinated Universal Time (UTC)"

In the xsl I used, as you can see, 1970-01-01T00:00:00Z because I want UTC. Maybe the problem is in 
date:duration???


Can anyone help me?

My system info:

Using libxml 20511, libxslt 10033 and libexslt 722
xsltproc was compiled against libxml 20511, libxslt 10033 and libexslt 722
libxslt 10033 was compiled against libxml 20511
libexslt 722 was compiled against libxml 20511


Thanks



--Marco



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